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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-10 22:14:12 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-11 04:54:35 +0200
commit26fe575028703948880fce4355a210c76bb0536e (patch)
tree0a7d04289e1eb1f1739659ebc9498d40f2add5da /fs/ubifs/tnc.c
parentvfs: move dentry name length comparison from dentry_cmp() into callers (diff)
downloadlinux-26fe575028703948880fce4355a210c76bb0536e.tar.xz
linux-26fe575028703948880fce4355a210c76bb0536e.zip
vfs: make it possible to access the dentry hash/len as one 64-bit entry
This allows comparing hash and len in one operation on 64-bit architectures. Right now only __d_lookup_rcu() takes advantage of this, since that is the case we care most about. The use of anonymous struct/unions hides the alternate 64-bit approach from most users, the exception being a few cases where we initialize a 'struct qstr' with a static initializer. This makes the problematic cases use a new QSTR_INIT() helper function for that (but initializing just the name pointer with a "{ .name = xyzzy }" initializer remains valid, as does just copying another qstr structure). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ubifs/tnc.c')
-rw-r--r--fs/ubifs/tnc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 16ad84d8402f..abd51331345e 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -2361,7 +2361,7 @@ int ubifs_tnc_add_nm(struct ubifs_info *c, const union ubifs_key *key,
* by passing 'ubifs_tnc_remove_nm()' the same key but
* an unmatchable name.
*/
- struct qstr noname = { .len = 0, .name = "" };
+ struct qstr noname = { .name = "" };
err = dbg_check_tnc(c, 0);
mutex_unlock(&c->tnc_mutex);